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Chemical Sampling Information (CSI)
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General Description

Synonyms: Talc, Fibrous Tremolite (see Asbestos) prior to 9/1/89

OSHA IMIS Code Number: 9031

Chemical Abstracts Service (CAS) Registry Number: 14807-96-6

Chemical Description and Physical Properties:
solid
Exposure Limits

OSHA Permissible Exposure Limit (PEL):
General Industry: Cancer & Lung Disease Hazard (29 CFR 1910.1001). TWA 0.2 F/cc. STEL 1.0 F/cc. ACTION LEVEL 0.1 F/cc
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): Use Asbestos TLV - TWA; However, should not exceed 2 mg/m3 respirable particulates. 2 mg/m3 Ceiling

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.1 fiber / cc in 400 liter air sample (fibers > 5um long) 100 min TWA; (use 29 CFR 1910.1001), Potential carcinogen

Health Factors

Carcinogenic Classification:
International Agency for Research on Cancer (IARC): Group 1, carcinogenic to humans [25 KB PDF, 4 pages]
Health Effects: Lung cancer (HE1)
Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • See Asbestos
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Page last updated: 01/15/1999

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